feat: add highlight.js as an option

assets/scss/app.scss

@@ -7,14 +7,17 @@
 /** Import Bootstrap */
 @import "bootstrap/scss/bootstrap";
 
+/** Import highlight.js */
+@import "highlight.js/scss/gradient-dark";
+
 /** Import theme styles */
 @import "common/fonts";
 @import "common/global";
 @import "common/dark";
-@import "components/alerts";
-@import "components/buttons";
 @import "components/code";
 // @import "components/syntax";
+@import "components/alerts";
+@import "components/buttons";
 @import "components/comments";
 @import "components/forms";
 @import "components/images";

assets/scss/common/_dark.scss

@@ -38,6 +38,16 @@ body.dark .btn-primary {
   color: $body-bg-dark !important;
 }
 
+body.dark .btn-outline-primary {
+  @include button-outline-variant($button-color-dark, $button-color-dark);
+
+  color: $link-color-dark;
+}
+
+body.dark .btn-outline-primary:hover {
+  color: $body-bg-dark;
+}
+
 body.dark .navbar {
   background: $body-bg-dark;
   opacity: 0.975;
@@ -178,12 +188,7 @@ body.dark ::selection {
   background: $selection-color-dark;
 }
 
-body.dark pre {
-  background: $body-overlay-dark;
-  color: $body-color-dark;
-}
-
-body.dark code {
+body.dark code:not(.hljs) {
   background: $body-overlay-dark;
   color: $body-color-dark;
 }

assets/scss/common/_variables.scss

@@ -110,6 +110,7 @@ $font-size-xl:                $font-size-base * 1.375;
 $font-size-lg:                $font-size-base * 1.25;
 $font-size-md:                $font-size-base * 1.125;
 $font-size-sm:                $font-size-base * 0.875;
+$font-size-xs:                $font-size-base * 0.625;
 
 $line-height-base:            1.5;
 

assets/scss/components/_buttons.scss

@@ -55,9 +55,19 @@ body.dark .toggle-dark {
 }
 
 @include media-breakpoint-up(md) {
+  .doks-clipboard {
+    position: relative;
+    float: right;
+  }
+
   .btn-clipboard {
+    position: absolute;
+    top: 2.125rem;
+    right: 1rem;
+    z-index: 10;
     display: block;
-    margin: 2.0625rem 0.25rem -4rem auto;
+    padding: 0.25rem 0.5rem;
+    font-size: $font-size-xs;
   }
 }
 

assets/scss/components/_code.scss

@@ -7,37 +7,37 @@ samp {
   border-radius: $border-radius;
 }
 
-pre {
-  background: $beige;
-  color: $black;
-  line-height: $line-height-base;
-  margin: 2rem 0;
-  overflow: auto;
-  padding: 1.25rem 1.5rem;
-  tab-size: 4;
-}
-
 code {
   background: $beige;
   color: $black;
   padding: 0.25rem 0.5rem;
 }
 
+pre {
+  margin: 2rem 0;
+}
+
 pre code {
-  background: none;
-  font-size: inherit;
-  padding: 0;
+  display: block;
+  overflow-x: auto;
+  line-height: $line-height-base;
+  padding: 1.25rem 1.5rem;
+  tab-size: 4;
+}
+
+.hljs {
+  padding: 1.25rem 1.5rem;
 }
 
 @include media-breakpoint-down(sm) {
-  pre {
-    margin: 2rem -1.5rem;
-  }
-
   pre,
   code,
   kbd,
   samp {
     border-radius: 0;
   }
+
+  pre {
+    margin: 2rem -1.5rem;
+  }
 }